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www.duolingo.com Open in urlscan Pro
34.194.7.215  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: http://duolingo.com/
Effective URL: https://www.duolingo.com/
Submission: On November 02 via manual from SG — Scanned from SG
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 20 IPs in 3 countries across 14 domains to perform 92 HTTP transactions. The main IP is 34.194.7.215, located in Ashburn, United States and belongs to AMAZON-AES, US. The main domain is www.duolingo.com. The Cisco Umbrella rank of the primary domain is 18987.
TLS certificate: Issued by Go Daddy Secure Certificate Authority... on November 20th 2022. Valid for: a year.
This is the only time www.duolingo.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 1 184.72.124.184 14618 (AMAZON-AES)
4 34.194.7.215 14618 (AMAZON-AES)
4 104.18.130.236 13335 (CLOUDFLAR...)
3 172.217.194.94 15169 (GOOGLE)
39 18.64.100.9 16509 (AMAZON-02)
4 64.233.170.94 15169 (GOOGLE)
1 172.64.155.119 13335 (CLOUDFLAR...)
16 18.232.25.127 14618 (AMAZON-AES)
2 142.251.10.97 15169 (GOOGLE)
2 64.233.170.84 15169 (GOOGLE)
1 18.66.2.22 16509 (AMAZON-02)
1 18.64.119.26 16509 (AMAZON-02)
2 74.125.130.94 15169 (GOOGLE)
1 172.217.194.155 15169 (GOOGLE)
2 216.239.32.178 15169 (GOOGLE)
2 157.240.235.1 32934 (FACEBOOK)
1 142.251.175.102 15169 (GOOGLE)
2 74.125.130.155 15169 (GOOGLE)
2 142.251.175.94 15169 (GOOGLE)
1 157.240.235.35 32934 (FACEBOOK)
92 20
1    184.72.124.184 (Ashburn, United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-184-72-124-184.compute-1.amazonaws.com
duolingo.com
4    34.194.7.215 (Ashburn, United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-34-194-7-215.compute-1.amazonaws.com
www.duolingo.com
4    104.18.130.236 (None, )

ASN13335 (CLOUDFLARENET, US)
cdn.cookielaw.org
3    172.217.194.94 (United States)

ASN15169 (GOOGLE, US)
PTR: si-in-f94.1e100.net
www.recaptcha.net
39    18.64.100.9 (United States)

ASN16509 (AMAZON-02, US)
PTR: server-18-64-100-9.txl50.r.cloudfront.net
d35aaqx5ub95lt.cloudfront.net
4    64.233.170.94 (United States)

ASN15169 (GOOGLE, US)
PTR: sg-in-f94.1e100.net
www.gstatic.com
1    172.64.155.119 (United States)

ASN13335 (CLOUDFLARENET, US)
geolocation.onetrust.com
16    18.232.25.127 (Ashburn, United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-18-232-25-127.compute-1.amazonaws.com
excess.duolingo.com
2    142.251.10.97 (United States)

ASN15169 (GOOGLE, US)
PTR: sd-in-f97.1e100.net
www.googletagmanager.com
2    64.233.170.84 (United States)

ASN15169 (GOOGLE, US)
PTR: sg-in-f84.1e100.net
accounts.google.com
1    18.66.2.22 (United States)

ASN16509 (AMAZON-02, US)
PTR: server-18-66-2-22.txl50.r.cloudfront.net
brb.duolingo.com
1    18.64.119.26 (United States)

ASN16509 (AMAZON-02, US)
PTR: server-18-64-119-26.txl50.r.cloudfront.net
zombie.duolingo.com
2    74.125.130.94 (United States)

ASN15169 (GOOGLE, US)
PTR: sb-in-f94.1e100.net
fonts.gstatic.com
1    172.217.194.155 (United States)

ASN15169 (GOOGLE, US)
PTR: si-in-f155.1e100.net
www.googleadservices.com
2    216.239.32.178 (United States)

ASN15169 (GOOGLE, US)
www.google-analytics.com
2    157.240.235.1 (Singapore, Singapore)

ASN32934 (FACEBOOK, US)
PTR: xx-fbcdn-shv-04-sin6.fbcdn.net
connect.facebook.net
1    142.251.175.102 (United States)

ASN15169 (GOOGLE, US)
PTR: sh-in-f102.1e100.net
analytics.google.com
2    74.125.130.155 (United States)

ASN15169 (GOOGLE, US)
PTR: sb-in-f155.1e100.net
stats.g.doubleclick.net
2    142.251.175.94 (United States)

ASN15169 (GOOGLE, US)
PTR: sh-in-f94.1e100.net
www.google.com.sg
1    157.240.235.35 (Singapore, Singapore)

ASN32934 (FACEBOOK, US)
PTR: edge-star-mini-shv-04-sin6.facebook.com
www.facebook.com
Apex Domain
Subdomains		 Transfer
39 cloudfront.net
d35aaqx5ub95lt.cloudfront.net
718 KB
23 duolingo.com
duolingo.com — Cisco Umbrella Rank: 6066
www.duolingo.com — Cisco Umbrella Rank: 18987
excess.duolingo.com — Cisco Umbrella Rank: 9298
brb.duolingo.com — Cisco Umbrella Rank: 8158
zombie.duolingo.com — Cisco Umbrella Rank: 11056
15 KB
6 gstatic.com
www.gstatic.com
fonts.gstatic.com
436 KB
4 cookielaw.org
cdn.cookielaw.org — Cisco Umbrella Rank: 342
114 KB
3 google.com
accounts.google.com — Cisco Umbrella Rank: 24
analytics.google.com — Cisco Umbrella Rank: 157
www.google.com Failed
79 KB
3 recaptcha.net
www.recaptcha.net — Cisco Umbrella Rank: 1361
35 KB
2 google.com.sg
www.google.com.sg — Cisco Umbrella Rank: 13407
515 B
2 doubleclick.net
stats.g.doubleclick.net — Cisco Umbrella Rank: 78
410 B
2 facebook.net
connect.facebook.net — Cisco Umbrella Rank: 174
90 KB
2 google-analytics.com
www.google-analytics.com — Cisco Umbrella Rank: 27
21 KB
2 googletagmanager.com
www.googletagmanager.com — Cisco Umbrella Rank: 35
191 KB
1 facebook.com
www.facebook.com — Cisco Umbrella Rank: 110
185 B
1 googleadservices.com
www.googleadservices.com — Cisco Umbrella Rank: 145
2 KB
1 onetrust.com
geolocation.onetrust.com — Cisco Umbrella Rank: 590
295 B
92 14
Domain Requested by
39 d35aaqx5ub95lt.cloudfront.net www.duolingo.com
d35aaqx5ub95lt.cloudfront.net
16 excess.duolingo.com d35aaqx5ub95lt.cloudfront.net
4 www.gstatic.com www.recaptcha.net
www.gstatic.com
4 cdn.cookielaw.org www.duolingo.com
cdn.cookielaw.org
d35aaqx5ub95lt.cloudfront.net
4 www.duolingo.com d35aaqx5ub95lt.cloudfront.net
3 www.recaptcha.net www.duolingo.com
www.gstatic.com
www.recaptcha.net
2 www.google.com.sg www.duolingo.com
2 stats.g.doubleclick.net www.googletagmanager.com
d35aaqx5ub95lt.cloudfront.net
2 connect.facebook.net www.duolingo.com
connect.facebook.net
2 www.google-analytics.com www.googletagmanager.com
d35aaqx5ub95lt.cloudfront.net
2 fonts.gstatic.com www.recaptcha.net
2 accounts.google.com d35aaqx5ub95lt.cloudfront.net
accounts.google.com
2 www.googletagmanager.com d35aaqx5ub95lt.cloudfront.net
www.googletagmanager.com
1 www.facebook.com www.duolingo.com
1 analytics.google.com www.googletagmanager.com
1 www.googleadservices.com www.googletagmanager.com
1 zombie.duolingo.com d35aaqx5ub95lt.cloudfront.net
1 brb.duolingo.com d35aaqx5ub95lt.cloudfront.net
1 geolocation.onetrust.com cdn.cookielaw.org
1 duolingo.com 1 redirects
0 www.google.com Failed www.duolingo.com
92 21
Subject Issuer Validity Valid
*.duolingo.com
Go Daddy Secure Certificate Authority - G2		 2022-11-20 -
2023-12-22		 a year crt.sh
cookielaw.org
Cloudflare Inc ECC CA-3		 2023-04-01 -
2024-03-31		 a year crt.sh
misc.google.com
GTS CA 1C3		 2023-10-09 -
2024-01-01		 3 months crt.sh
*.cloudfront.net
Amazon RSA 2048 M01		 2022-12-08 -
2023-12-07		 a year crt.sh
*.gstatic.com
GTS CA 1C3		 2023-10-09 -
2024-01-01		 3 months crt.sh
onetrust.com
Cloudflare Inc ECC CA-3		 2022-12-13 -
2023-12-13		 a year crt.sh
*.google-analytics.com
GTS CA 1C3		 2023-10-09 -
2024-01-01		 3 months crt.sh
accounts.google.com
GTS CA 1C3		 2023-10-09 -
2024-01-01		 3 months crt.sh
www.googleadservices.com
GTS CA 1C3		 2023-10-09 -
2024-01-01		 3 months crt.sh
*.facebook.com
DigiCert SHA2 High Assurance Server CA		 2023-08-11 -
2023-11-09		 3 months crt.sh
*.google.com
GTS CA 1C3		 2023-10-09 -
2024-01-01		 3 months crt.sh
*.g.doubleclick.net
GTS CA 1C3		 2023-10-09 -
2024-01-01		 3 months crt.sh
*.google.com.sg
GTS CA 1C3		 2023-10-09 -
2024-01-01		 3 months crt.sh

This page contains 2 frames:

Primary Page: https://www.duolingo.com/
Frame ID: 63F281B7BA0E4BFEB13CF349C5A99C05
Requests: 78 HTTP requests in this frame

Frame: https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly93d3cuZHVvbGluZ28uY29tOjQ0Mw..&hl=zh-CN&v=3sU2vDRVDmUU2E0Ro4VadvPr&size=invisible&cb=q2u2hrsqcz38
Frame ID: 072ABB66874ADEF453B321ECD2204EE1
Requests: 7 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

多邻国 - 全球数亿语言学习者的口碑选择badge-app-storebadge-app-store

Page URL History Show full URLs

  1. http://duolingo.com/ HTTP 301
    https://www.duolingo.com/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • accounts\.google\.com/gsi/client
Overall confidence: 100%
Detected patterns
  • <[^>]+data-react
Overall confidence: 100%
Detected patterns
  • //connect\.facebook\.([a-z]+)/[^/]*/[a-z]*\.js
Overall confidence: 100%
Detected patterns
  • google-analytics\.com/(?:ga|urchin|analytics)\.js
Overall confidence: 100%
Detected patterns
  • googletagmanager\.com/gtm\.js
  • googletagmanager\.com/gtag/js
Overall confidence: 100%
Detected patterns
  • cdn\.cookielaw\.org
  • otSDKStub\.js

Page Statistics

92
Requests

98 %
HTTPS

0 %
IPv6

14
Domains

21
Subdomains

20
IPs

3
Countries

1701 kB
Transfer

4898 kB
Size

19
Cookies

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

  1. http://duolingo.com/ HTTP 301
    https://www.duolingo.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 84
  • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/397119219/?random=1266593422&cv=11&fst=1698896842338&bg=ffffff&guid=ON&async=1&gtm=45He3au1v811879556&gcd=11l1l1l1l1&u_w=1600&u_h=1200&url=https%3A%2F%2Fwww.duolingo.com%2F&label=k0ETCJGBvf0BEPOdrr0B&hn=www.googleadservices.com&frm=0&tiba=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&value=1&auid=1455369284.1698896842&uamb=0&uaw=0&fmt=3&ct_cookie_present=false&ocp_id=yhtDZY-IKKvKjMwPm8-XiAI&sscte=1&crd=&eitems=ChEI8O6HqgYQrtiO1bqf5Z6BARIdAOvfYP4argvqO5HLri0T95cr4j4rbNE3NrTjq3o&pscrd=Ek5DaEFJOE82SHFnWVE2N0Q5cjdtVnN1bEJFaVlBVUtxaUpEdWVvVGFBVFJVY0s4Umd0TUZLMUc5djRnSndpdnhWWV91VlpWUEFFaWt3NWcaWkNoRUk4TzZIcWdZUXR1LTZ4dlhVNE03ekFSSXVBQlNjLTFaMU85OXJGWjNFQkRLQms2T2JuOXVabDJrQVdZcVQxVTdrTVV0WW4wYUxCUmtwbUlueVBTU2NBdyITCI-VxPazpIIDFSslgwMdm-cFIQ HTTP 302
  • https://www.google.com/pagead/1p-conversion/397119219/?random=1266593422&cv=11&fst=1698896842338&bg=ffffff&guid=ON&async=1&gtm=45He3au1v811879556&gcd=11l1l1l1l1&u_w=1600&u_h=1200&url=https%3A%2F%2Fwww.duolingo.com%2F&label=k0ETCJGBvf0BEPOdrr0B&hn=www.googleadservices.com&frm=0&tiba=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&value=1&auid=1455369284.1698896842&uamb=0&uaw=0&fmt=3&ct_cookie_present=false&sscte=1&crd=&pscrd=Ek5DaEFJOE82SHFnWVE2N0Q5cjdtVnN1bEJFaVlBVUtxaUpEdWVvVGFBVFJVY0s4Umd0TUZLMUc5djRnSndpdnhWWV91VlpWUEFFaWt3NWcaWkNoRUk4TzZIcWdZUXR1LTZ4dlhVNE03ekFSSXVBQlNjLTFaMU85OXJGWjNFQkRLQms2T2JuOXVabDJrQVdZcVQxVTdrTVV0WW4wYUxCUmtwbUlueVBTU2NBdyITCI-VxPazpIIDFSslgwMdm-cFIQ&is_vtc=1&ocp_id=yhtDZY-IKKvKjMwPm8-XiAI&cid=CAQSGwDICaaNA9UDI7_7KTLQcj_GDRoh6PyZr8goUA&eitems=ChEI8O6HqgYQrtiO1bqf5Z6BARIdAOvfYP7t6VS-c3uE_6gRil6LxbBjrYbFSXpVQyc&random=501145729

92 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
www.duolingo.com/
Redirect Chain
  • http://duolingo.com/
  • https://www.duolingo.com/
9 KB
4 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://www.duolingo.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
34.194.7.215 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS
ec2-34-194-7-215.compute-1.amazonaws.com
Software
duo-api /
Resource Hash
0bcdde2c1fef707eb1db022ac44dc8ae20cb148bbce4f8912e0cef5b4bbfab16
Security Headers
Name Value
X-Frame-Options SAMEORIGIN

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36
accept-language
zh-SG,zh;q=0.9

Response headers

cache-control
no-store, no-cache, must-revalidate, proxy-revalidate
content-encoding
gzip
content-type
text/html; charset=UTF-8
date
Thu, 02 Nov 2023 03:47:17 GMT
expires
0
no-retry
1
pragma
no-cache
server
duo-api
surrogate-control
no-store
x-duo-request-host
www.duolingo.com
x-envoy-upstream-service-time
840
x-frame-options
SAMEORIGIN
x-runtime
0.83306
x-tid
ffff5b2465431a920325
x-ws
UK

Redirect headers

Connection
keep-alive
Content-Length
193
Content-Type
text/html
Date
Thu, 02 Nov 2023 03:47:15 GMT
Location
https://www.duolingo.com
Server
nginx/1.4.6 (Ubuntu)
otSDKStub.js
cdn.cookielaw.org/scripttemplates/ 		21 KB
7 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.18.130.236 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
6b1fc966c38b12c845f9fd8bdb76027106b776783fd44eeed917663942b5fd16
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

x-ms-blob-type
BlockBlob
date
Thu, 02 Nov 2023 03:47:18 GMT
content-encoding
gzip
x-content-type-options
nosniff
cf-cache-status
HIT
content-md5
R1P6TtSHAQZyvOSI/KawHw==
age
18408
strict-transport-security
max-age=31536000; includeSubDomains; preload
content-length
6821
x-ms-lease-status
unlocked
last-modified
Tue, 31 Oct 2023 06:38:09 GMT
server
cloudflare
etag
0x8DBD9DBF28FEFC5
vary
Accept-Encoding
content-type
application/javascript
access-control-allow-origin
*
x-ms-request-id
cb39ca16-001e-0062-7367-0cfba4000000
access-control-expose-headers
x-ms-request-id,Server,x-ms-version,Content-Type,Content-Encoding,Last-Modified,ETag,Content-MD5,x-ms-lease-status,x-ms-blob-type,Content-Length,Date,Transfer-Encoding
cache-control
max-age=86400
x-ms-version
2009-09-19
accept-ranges
bytes
cf-ray
81f96536ebc944a0-SIN
enterprise.js
www.recaptcha.net/recaptcha/ 		1 KB
1 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.recaptcha.net/recaptcha/enterprise.js?render=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
172.217.194.94 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
si-in-f94.1e100.net
Software
GSE /
Resource Hash
13f52d68384910f9e9c89cb90967320344fda236c49af774f552c3c529c58410
Security Headers
Name Value
Content-Security-Policy frame-ancestors 'self'
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

date
Thu, 02 Nov 2023 03:47:18 GMT
content-encoding
gzip
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self'
server
GSE
x-frame-options
SAMEORIGIN
content-type
text/javascript; charset=UTF-8
cache-control
private, max-age=300
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection
1; mode=block
expires
Thu, 02 Nov 2023 03:47:18 GMT
manifest-2d8e020e.js
d35aaqx5ub95lt.cloudfront.net/js/ 		12 KB
6 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://d35aaqx5ub95lt.cloudfront.net/js/manifest-2d8e020e.js
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
18.64.100.9 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-18-64-100-9.txl50.r.cloudfront.net
Software
AmazonS3 /
Resource Hash
9b81f038236261315994ae5271adca468fb5e5885d530da136a491fdc9787389

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

date
Wed, 01 Nov 2023 15:47:16 GMT
content-encoding
gzip
via
1.1 3ffa21fde24be18d36c5d5b13a622abe.cloudfront.net (CloudFront)
last-modified
Wed, 01 Nov 2023 15:41:32 GMT
server
AmazonS3
x-amz-cf-pop
TXL50-P3
age
43204
etag
"9449cd9cf3fcc2aaaee5d3a7497b7ca9"
x-amz-server-side-encryption
AES256
x-cache
Hit from cloudfront
content-type
application/javascript
cache-control
max-age=315360000
accept-ranges
bytes
content-length
6041
x-amz-cf-id
I95PoyWHna02tDCT6BUGbmB9OwJOjnUGYY8cNgbva5c6Iqrt898ahg==
features-788794a2.js
d35aaqx5ub95lt.cloudfront.net/js/ 		4 KB
2 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://d35aaqx5ub95lt.cloudfront.net/js/features-788794a2.js
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
18.64.100.9 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-18-64-100-9.txl50.r.cloudfront.net
Software
AmazonS3 /
Resource Hash
846ba519c7004790e2c87e417051f57e68b09ac7f0c9c25405854abeac5eafbf

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

date
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12 KB 		Script
General
Check archive.org
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Full URL
https://d35aaqx5ub95lt.cloudfront.net/js/3954-3a417275.js
Requested by
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Protocol
H2
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TLS 1.3, , AES_128_GCM
Server
18.64.100.9 , United States, ASN16509 (AMAZON-02, US),
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content-type
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cache-control
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https://d35aaqx5ub95lt.cloudfront.net/js/polyfills-1a981aad.js
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
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TLS 1.3, , AES_128_GCM
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18.64.100.9 , United States, ASN16509 (AMAZON-02, US),
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accept-language
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Response headers

date
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content-encoding
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content-type
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cache-control
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General
Check archive.org
Download Go to
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https://d35aaqx5ub95lt.cloudfront.net/js/5189-53d369fa.js
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
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TLS 1.3, , AES_128_GCM
Server
18.64.100.9 , United States, ASN16509 (AMAZON-02, US),
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accept-language
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Response headers

date
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content-encoding
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AmazonS3
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content-type
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cache-control
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General
Check archive.org
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https://d35aaqx5ub95lt.cloudfront.net/js/strings/zh-CN-7aee23dc.js
Requested by
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TLS 1.3, , AES_128_GCM
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accept-language
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Response headers

date
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content-encoding
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content-type
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General
Check archive.org
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https://d35aaqx5ub95lt.cloudfront.net/js/4492-25ec662f.js
Requested by
Host: www.duolingo.com
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TLS 1.3, , AES_128_GCM
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content-encoding
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633033
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General
Check archive.org
Download Go to
Full URL
https://d35aaqx5ub95lt.cloudfront.net/js/app-d9de5736.js
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Protocol
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date
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content-encoding
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Check archive.org
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https://d35aaqx5ub95lt.cloudfront.net/css/4492-b669d05a.css
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content-encoding
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General
Check archive.org
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Full URL
https://d35aaqx5ub95lt.cloudfront.net/css/app-c69cae82.css
Requested by
Host: www.duolingo.com
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Protocol
H2
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TLS 1.3, , AES_128_GCM
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date
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content-encoding
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AmazonS3
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633032
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General
Check archive.org
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Full URL
https://cdn.cookielaw.org/consent/55a7f100-001e-4085-87ec-1a6d522f7d67/55a7f100-001e-4085-87ec-1a6d522f7d67.json
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H2
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TLS 1.3, , AES_128_GCM
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Request headers

accept-language
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https://www.duolingo.com/
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Response headers

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BlockBlob
date
Thu, 02 Nov 2023 03:47:18 GMT
content-encoding
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cf-cache-status
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cloudflare
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189 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.gstatic.com/recaptcha/releases/3sU2vDRVDmUU2E0Ro4VadvPr/recaptcha__zh_cn.js
Requested by
Host: www.recaptcha.net
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H2
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https://www.duolingo.com
accept-language
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User-Agent
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Response headers

date
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content-encoding
gzip
x-content-type-options
nosniff
age
203312
content-security-policy-report-only
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server
sffe
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Tue, 29 Oct 2024 19:18:48 GMT
location
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295 B 		XHR
General
Check archive.org
Download Go to
Full URL
https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location
Requested by
Host: cdn.cookielaw.org
URL: https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
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application/json
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accept-language
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User-Agent
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Response headers

date
Thu, 02 Nov 2023 03:47:19 GMT
strict-transport-security
max-age=31536000; includeSubDomains; preload
content-encoding
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vary
Accept-Encoding
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General
Check archive.org
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Full URL
https://d35aaqx5ub95lt.cloudfront.net/vendor/b391a1740855adb49e1bfc5fbe836c5c.woff2
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
18.64.100.9 , United States, ASN16509 (AMAZON-02, US),
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server-18-64-100-9.txl50.r.cloudfront.net
Software
AmazonS3 /
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Request headers

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https://www.duolingo.com/
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https://www.duolingo.com
accept-language
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Response headers

date
Fri, 04 Aug 2023 11:14:36 GMT
content-encoding
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x-amz-cf-pop
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server
AmazonS3
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General
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https://d35aaqx5ub95lt.cloudfront.net/vendor/c1ebba64155e95ff69b9b3efb15c219a.woff2
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data:truncated
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https://cdn.cookielaw.org/scripttemplates/6.16.0/otBannerSdk.js
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General
Check archive.org
Download Go to
Full URL
https://excess.duolingo.com/batch
Protocol
H2
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18.232.25.127 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Check archive.org
Download Go to
Full URL
https://excess.duolingo.com/batch
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H2
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18.232.25.127 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Check archive.org
Download Go to
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https://excess.duolingo.com/batch
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Jetty(9.2.z-SNAPSHOT)
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Check archive.org
Download Go to
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https://excess.duolingo.com/batch
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H2
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Check archive.org
Download Go to
Full URL
https://excess.duolingo.com/batch
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server
Jetty(9.2.z-SNAPSHOT)
batch
excess.duolingo.com/ Frame 		0
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Check archive.org
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Full URL
https://excess.duolingo.com/batch
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H2
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server
Jetty(9.2.z-SNAPSHOT)
batch
excess.duolingo.com/ Frame 		0
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General
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Download Go to
Full URL
https://excess.duolingo.com/batch
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H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
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18.232.25.127 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Jetty(9.2.z-SNAPSHOT)
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https://d35aaqx5ub95lt.cloudfront.net/css/5137-0f1340eb.css
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Host: d35aaqx5ub95lt.cloudfront.net
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https://d35aaqx5ub95lt.cloudfront.net/js/5137-b4a19d69.js
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URL: https://d35aaqx5ub95lt.cloudfront.net/js/manifest-2d8e020e.js
Protocol
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content-encoding
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https://d35aaqx5ub95lt.cloudfront.net/css/9272-bf28cf7d.css
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Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/manifest-2d8e020e.js
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content-encoding
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4 KB 		Script
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Requested by
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URL: https://d35aaqx5ub95lt.cloudfront.net/js/manifest-2d8e020e.js
Protocol
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content-encoding
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URL: https://d35aaqx5ub95lt.cloudfront.net/js/manifest-2d8e020e.js
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URL: https://d35aaqx5ub95lt.cloudfront.net/js/manifest-2d8e020e.js
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312 B 		XHR
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Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/4492-25ec662f.js
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
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date
Thu, 02 Nov 2023 03:47:21 GMT
accept-encoding
gzip, identity
server
Jetty(9.2.z-SNAPSHOT)
access-control-max-age
3600
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Host: www.duolingo.com
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H2
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content-encoding
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H2
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date
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content-encoding
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accept-language
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date
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content-encoding
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H2
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date
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content-encoding
gzip
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Host: www.duolingo.com
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H2
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TLS 1.3, , AES_128_GCM
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accept-language
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date
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content-encoding
gzip
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312 B 		XHR
General
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https://excess.duolingo.com/batch
Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/4492-25ec662f.js
Protocol
H2
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date
Thu, 02 Nov 2023 03:47:21 GMT
accept-encoding
gzip, identity
server
Jetty(9.2.z-SNAPSHOT)
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3600
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batch
excess.duolingo.com/ 		34 B
312 B 		XHR
General
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https://excess.duolingo.com/batch
Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/4492-25ec662f.js
Protocol
H2
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TLS 1.2, ECDHE_RSA, AES_128_GCM
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date
Thu, 02 Nov 2023 03:47:21 GMT
accept-encoding
gzip, identity
server
Jetty(9.2.z-SNAPSHOT)
access-control-max-age
3600
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34
batch
excess.duolingo.com/ 		34 B
312 B 		XHR
General
Check archive.org
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https://excess.duolingo.com/batch
Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/4492-25ec662f.js
Protocol
H2
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TLS 1.2, ECDHE_RSA, AES_128_GCM
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date
Thu, 02 Nov 2023 03:47:21 GMT
accept-encoding
gzip, identity
server
Jetty(9.2.z-SNAPSHOT)
access-control-max-age
3600
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batch
excess.duolingo.com/ 		34 B
312 B 		XHR
General
Check archive.org
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https://excess.duolingo.com/batch
Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/4492-25ec662f.js
Protocol
H2
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TLS 1.2, ECDHE_RSA, AES_128_GCM
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ec2-18-232-25-127.compute-1.amazonaws.com
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Referer
https://www.duolingo.com/
accept-language
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application/json

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date
Thu, 02 Nov 2023 03:47:21 GMT
accept-encoding
gzip, identity
server
Jetty(9.2.z-SNAPSHOT)
access-control-max-age
3600
access-control-allow-methods
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Content-Type, Access-Control-Allow-Headers, Authorization
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batch
excess.duolingo.com/ 		34 B
312 B 		XHR
General
Check archive.org
Download Go to
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https://excess.duolingo.com/batch
Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/4492-25ec662f.js
Protocol
H2
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TLS 1.2, ECDHE_RSA, AES_128_GCM
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ec2-18-232-25-127.compute-1.amazonaws.com
Software
Jetty(9.2.z-SNAPSHOT) /
Resource Hash
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Request headers

Referer
https://www.duolingo.com/
accept-language
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date
Thu, 02 Nov 2023 03:47:21 GMT
accept-encoding
gzip, identity
server
Jetty(9.2.z-SNAPSHOT)
access-control-max-age
3600
access-control-allow-methods
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text/plain; charset=ISO-8859-1
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*
access-control-allow-headers
Content-Type, Access-Control-Allow-Headers, Authorization
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34
batch
excess.duolingo.com/ 		34 B
312 B 		XHR
General
Check archive.org
Download Go to
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https://excess.duolingo.com/batch
Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/4492-25ec662f.js
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
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ec2-18-232-25-127.compute-1.amazonaws.com
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Jetty(9.2.z-SNAPSHOT) /
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Request headers

Referer
https://www.duolingo.com/
accept-language
zh-SG,zh;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36
Content-type
application/json

Response headers

date
Thu, 02 Nov 2023 03:47:21 GMT
accept-encoding
gzip, identity
server
Jetty(9.2.z-SNAPSHOT)
access-control-max-age
3600
access-control-allow-methods
POST, GET, OPTIONS
content-type
text/plain; charset=ISO-8859-1
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21 KB 		Fetch
General
Check archive.org
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Full URL
https://cdn.cookielaw.org/consent/55a7f100-001e-4085-87ec-1a6d522f7d67/a714f50c-3dd8-46b5-8c3e-f33de492a413/zh-cn.json
Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/4492-25ec662f.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
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Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
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Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

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BlockBlob
date
Thu, 02 Nov 2023 03:47:20 GMT
content-encoding
gzip
x-content-type-options
nosniff
cf-cache-status
HIT
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server
cloudflare
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expires
Fri, 03 Nov 2023 03:47:20 GMT
batch
excess.duolingo.com/ Frame 		0
0 		Preflight
General
Check archive.org
Download Go to
Full URL
https://excess.duolingo.com/batch
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
18.232.25.127 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS
ec2-18-232-25-127.compute-1.amazonaws.com
Software
Jetty(9.2.z-SNAPSHOT) /
Resource Hash

Request headers

Accept
*/*
Access-Control-Request-Headers
content-type
Access-Control-Request-Method
POST
Origin
https://www.duolingo.com
Sec-Fetch-Mode
cors
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Response headers

accept-encoding
gzip, identity
access-control-allow-headers
Content-Type, Access-Control-Allow-Headers, Authorization
access-control-allow-methods
POST, GET, OPTIONS
access-control-allow-origin
*
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date
Thu, 02 Nov 2023 03:47:21 GMT
server
Jetty(9.2.z-SNAPSHOT)
batch
excess.duolingo.com/ 		34 B
312 B 		XHR
General
Check archive.org
Download Go to
Full URL
https://excess.duolingo.com/batch
Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/4492-25ec662f.js
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
18.232.25.127 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS
ec2-18-232-25-127.compute-1.amazonaws.com
Software
Jetty(9.2.z-SNAPSHOT) /
Resource Hash
26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer
https://www.duolingo.com/
accept-language
zh-SG,zh;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36
Content-type
application/json

Response headers

date
Thu, 02 Nov 2023 03:47:21 GMT
accept-encoding
gzip, identity
server
Jetty(9.2.z-SNAPSHOT)
access-control-max-age
3600
access-control-allow-methods
POST, GET, OPTIONS
content-type
text/plain; charset=ISO-8859-1
access-control-allow-origin
*
access-control-allow-headers
Content-Type, Access-Control-Allow-Headers, Authorization
content-length
34
anchor
www.recaptcha.net/recaptcha/enterprise/ Frame 072A 		58 KB
33 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly93d3cuZHVvbGluZ28uY29tOjQ0Mw..&hl=zh-CN&v=3sU2vDRVDmUU2E0Ro4VadvPr&size=invisible&cb=q2u2hrsqcz38
Requested by
Host: www.gstatic.com
URL: https://www.gstatic.com/recaptcha/releases/3sU2vDRVDmUU2E0Ro4VadvPr/recaptcha__zh_cn.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
172.217.194.94 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
si-in-f94.1e100.net
Software
GSE /
Resource Hash
093c391c6f5644664c4ed02de3e2a337cfa58445426f286bd3ed7af2c05387e7
Security Headers
Name Value
Content-Security-Policy script-src 'report-sample' 'nonce-XQnfBTPfBJ_O3tbstcg-0g' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';object-src 'none';base-uri 'self';report-uri https://csp.withgoogle.com/csp/recaptcha/1
X-Content-Type-Options nosniff
X-Xss-Protection 1; mode=block

Request headers

Referer
https://www.duolingo.com/
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36
accept-language
zh-SG,zh;q=0.9

Response headers

alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
cache-control
no-cache, no-store, max-age=0, must-revalidate
content-encoding
gzip
content-security-policy
script-src 'report-sample' 'nonce-XQnfBTPfBJ_O3tbstcg-0g' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';object-src 'none';base-uri 'self';report-uri https://csp.withgoogle.com/csp/recaptcha/1
content-type
text/html; charset=utf-8
cross-origin-embedder-policy
require-corp
cross-origin-resource-policy
cross-origin
date
Thu, 02 Nov 2023 03:47:20 GMT
expires
Mon, 01 Jan 1990 00:00:00 GMT
pragma
no-cache
report-to
{"group":"recaptcha","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/recaptcha"}]}
server
GSE
x-content-type-options
nosniff
x-xss-protection
1; mode=block
styles__ltr.css
www.gstatic.com/recaptcha/releases/3sU2vDRVDmUU2E0Ro4VadvPr/ Frame 072A 		55 KB
25 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://www.gstatic.com/recaptcha/releases/3sU2vDRVDmUU2E0Ro4VadvPr/styles__ltr.css
Requested by
Host: www.recaptcha.net
URL: https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly93d3cuZHVvbGluZ28uY29tOjQ0Mw..&hl=zh-CN&v=3sU2vDRVDmUU2E0Ro4VadvPr&size=invisible&cb=q2u2hrsqcz38
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
64.233.170.94 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
sg-in-f94.1e100.net
Software
sffe /
Resource Hash
7859a62e04b0acb06516eb12454de6673883ecfaeaed6c254659bca7cd59c050
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.recaptcha.net/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

date
Wed, 01 Nov 2023 13:07:51 GMT
content-encoding
gzip
x-content-type-options
nosniff
age
52770
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/recaptcha
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
24606
x-xss-protection
0
last-modified
Mon, 30 Oct 2023 02:02:02 GMT
server
sffe
cross-origin-opener-policy
same-origin-allow-popups; report-to="recaptcha"
vary
Accept-Encoding
report-to
{"group":"recaptcha","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/recaptcha"}]}
content-type
text/css
cache-control
public, max-age=31536000
accept-ranges
bytes
expires
Thu, 31 Oct 2024 13:07:51 GMT
recaptcha__zh_cn.js
www.gstatic.com/recaptcha/releases/3sU2vDRVDmUU2E0Ro4VadvPr/ Frame 072A 		475 KB
189 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.gstatic.com/recaptcha/releases/3sU2vDRVDmUU2E0Ro4VadvPr/recaptcha__zh_cn.js
Requested by
Host: www.recaptcha.net
URL: https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly93d3cuZHVvbGluZ28uY29tOjQ0Mw..&hl=zh-CN&v=3sU2vDRVDmUU2E0Ro4VadvPr&size=invisible&cb=q2u2hrsqcz38
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
64.233.170.94 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
sg-in-f94.1e100.net
Software
sffe /
Resource Hash
b43e94368086802a7cce49d5868c0d43ff11bf21802f337755406806e296ea26
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.recaptcha.net/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

date
Mon, 30 Oct 2023 19:18:48 GMT
content-encoding
gzip
x-content-type-options
nosniff
age
203313
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/recaptcha
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
193025
x-xss-protection
0
last-modified
Mon, 30 Oct 2023 02:02:02 GMT
server
sffe
cross-origin-opener-policy
same-origin-allow-popups; report-to="recaptcha"
vary
Accept-Encoding
report-to
{"group":"recaptcha","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/recaptcha"}]}
content-type
text/javascript
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
expires
Tue, 29 Oct 2024 19:18:48 GMT
logo_48.png
www.gstatic.com/recaptcha/api2/ Frame 072A 		2 KB
2 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://www.gstatic.com/recaptcha/api2/logo_48.png
Requested by
Host: www.gstatic.com
URL: https://www.gstatic.com/recaptcha/releases/3sU2vDRVDmUU2E0Ro4VadvPr/styles__ltr.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
64.233.170.94 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
sg-in-f94.1e100.net
Software
sffe /
Resource Hash
1b9efb22c938500971aac2b2130a475fa23684dd69e43103894968df83145b8a
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.gstatic.com/recaptcha/releases/3sU2vDRVDmUU2E0Ro4VadvPr/styles__ltr.css
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

date
Wed, 01 Nov 2023 04:21:15 GMT
x-content-type-options
nosniff
age
84366
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/recaptcha
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
2228
x-xss-protection
0
last-modified
Tue, 03 Mar 2020 20:15:00 GMT
server
sffe
cross-origin-opener-policy
same-origin-allow-popups; report-to="recaptcha"
report-to
{"group":"recaptcha","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/recaptcha"}]}
content-type
image/png
cache-control
public, max-age=604800
accept-ranges
bytes
expires
Wed, 08 Nov 2023 04:21:15 GMT
KFOmCnqEu92Fr1Mu4mxK.woff2
fonts.gstatic.com/s/roboto/v18/ Frame 072A 		15 KB
15 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxK.woff2
Requested by
Host: www.recaptcha.net
URL: https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly93d3cuZHVvbGluZ28uY29tOjQ0Mw..&hl=zh-CN&v=3sU2vDRVDmUU2E0Ro4VadvPr&size=invisible&cb=q2u2hrsqcz38
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
74.125.130.94 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
sb-in-f94.1e100.net
Software
sffe /
Resource Hash
3e253b66056519aa065b00a453bac37ac5ed8f3e6fe7b542e93a9dcdcc11d0bc
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

Referer
https://www.recaptcha.net/
Origin
https://www.recaptcha.net
accept-language
zh-SG,zh;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

date
Wed, 01 Nov 2023 06:06:49 GMT
x-content-type-options
nosniff
age
78033
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
15344
x-xss-protection
0
last-modified
Mon, 16 Oct 2017 17:32:55 GMT
server
sffe
cross-origin-opener-policy
same-origin; report-to="apps-themes"
report-to
{"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]}
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
timing-allow-origin
*
expires
Thu, 31 Oct 2024 06:06:49 GMT
KFOlCnqEu92Fr1MmEU9fBBc4.woff2
fonts.gstatic.com/s/roboto/v18/ Frame 072A 		15 KB
16 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://fonts.gstatic.com/s/roboto/v18/KFOlCnqEu92Fr1MmEU9fBBc4.woff2
Requested by
Host: www.recaptcha.net
URL: https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly93d3cuZHVvbGluZ28uY29tOjQ0Mw..&hl=zh-CN&v=3sU2vDRVDmUU2E0Ro4VadvPr&size=invisible&cb=q2u2hrsqcz38
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
74.125.130.94 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
sb-in-f94.1e100.net
Software
sffe /
Resource Hash
5a8c1e7681318caa29e9f44e8a6e271f6a4067a2703e9916dfd4fe9099241db7
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

Referer
https://www.recaptcha.net/
Origin
https://www.recaptcha.net
accept-language
zh-SG,zh;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

date
Wed, 01 Nov 2023 05:58:00 GMT
x-content-type-options
nosniff
age
78562
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
15552
x-xss-protection
0
last-modified
Mon, 16 Oct 2017 17:33:02 GMT
server
sffe
cross-origin-opener-policy
same-origin; report-to="apps-themes"
report-to
{"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]}
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
timing-allow-origin
*
expires
Thu, 31 Oct 2024 05:58:00 GMT
webworker.js
www.recaptcha.net/recaptcha/enterprise/ Frame 072A 		105 B
212 B 		Other
General
Check archive.org
Download Go to
Full URL
https://www.recaptcha.net/recaptcha/enterprise/webworker.js?hl=zh-CN&v=3sU2vDRVDmUU2E0Ro4VadvPr
Requested by
Host: www.recaptcha.net
URL: https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly93d3cuZHVvbGluZ28uY29tOjQ0Mw..&hl=zh-CN&v=3sU2vDRVDmUU2E0Ro4VadvPr&size=invisible&cb=q2u2hrsqcz38
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
172.217.194.94 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
si-in-f94.1e100.net
Software
GSE /
Resource Hash
da92911c79839c4d3e0d8decc7e029f32f85fa5bf64f18e2463a74a0e16550eb
Security Headers
Name Value
Content-Security-Policy frame-ancestors 'self'
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly93d3cuZHVvbGluZ28uY29tOjQ0Mw..&hl=zh-CN&v=3sU2vDRVDmUU2E0Ro4VadvPr&size=invisible&cb=q2u2hrsqcz38
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

date
Thu, 02 Nov 2023 03:47:21 GMT
content-encoding
gzip
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self'
server
GSE
cross-origin-embedder-policy
require-corp
x-frame-options
SAMEORIGIN
report-to
{"group":"recaptcha","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/recaptcha"}]}
content-type
text/javascript; charset=UTF-8
cache-control
private, max-age=300
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection
1; mode=block
expires
Thu, 02 Nov 2023 03:47:21 GMT
js
www.googletagmanager.com/gtag/ 		290 KB
94 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.googletagmanager.com/gtag/js?id=G-CSFDVCPQ4F&l=dataLayer&cx=c
Requested by
Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtm.js?id=GTM-TX6Z97C
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
142.251.10.97 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
sd-in-f97.1e100.net
Software
Google Tag Manager /
Resource Hash
b4f1cde29c468be3d437da4f9cd70643760877a5278c51655da2f3acdf2440d5
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Xss-Protection 0

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

date
Thu, 02 Nov 2023 03:47:22 GMT
content-encoding
br
strict-transport-security
max-age=31536000; includeSubDomains
server
Google Tag Manager
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
access-control-allow-origin
*
cache-control
private, max-age=900
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
access-control-allow-headers
Cache-Control
content-length
95978
x-xss-protection
0
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
expires
Thu, 02 Nov 2023 03:47:22 GMT
/
www.googleadservices.com/pagead/conversion/397119219/ 		3 KB
2 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.googleadservices.com/pagead/conversion/397119219/?random=1698896842338&cv=11&fst=1698896842338&bg=ffffff&guid=ON&async=1&gtm=45He3au1v811879556&gcd=11l1l1l1l1&u_w=1600&u_h=1200&url=https%3A%2F%2Fwww.duolingo.com%2F&label=k0ETCJGBvf0BEPOdrr0B&hn=www.googleadservices.com&frm=0&tiba=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&value=1&bttype=purchase&auid=1455369284.1698896842&uamb=0&uaw=0&rfmt=3&fmt=4
Requested by
Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtm.js?id=GTM-TX6Z97C
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
172.217.194.155 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
si-in-f155.1e100.net
Software
cafe /
Resource Hash
9bf725edc4ec4483e08f5c34214d6d6cb190d552a8c9b1d459c44399ce9a00b3
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

pragma
no-cache
date
Thu, 02 Nov 2023 03:47:22 GMT
content-encoding
br
x-content-type-options
nosniff
server
cafe
content-type
text/javascript; charset=UTF-8
p3p
policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
cache-control
no-cache, must-revalidate
cross-origin-resource-policy
cross-origin
content-disposition
attachment; filename="f.txt"
timing-allow-origin
*
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
1712
x-xss-protection
0
expires
Fri, 01 Jan 1990 00:00:00 GMT
analytics.js
www.google-analytics.com/ 		52 KB
21 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.google-analytics.com/analytics.js
Requested by
Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtm.js?id=GTM-TX6Z97C
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
216.239.32.178 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
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Security Headers
Name Value
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X-Content-Type-Options nosniff

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
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Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
date
Thu, 02 Nov 2023 01:59:23 GMT
last-modified
Mon, 12 Jun 2023 18:23:07 GMT
server
Golfe2
age
6479
vary
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content-type
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cache-control
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cross-origin-resource-policy
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content-length
20994
expires
Thu, 02 Nov 2023 03:59:23 GMT
fbevents.js
connect.facebook.net/en_US/ 		202 KB
54 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://connect.facebook.net/en_US/fbevents.js
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
157.240.235.1 Singapore, Singapore, ASN32934 (FACEBOOK, US),
Reverse DNS
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Software
/
Resource Hash
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Security Headers
Name Value
Content-Security-Policy default-src * data: blob: 'self';script-src *.facebook.com *.fbcdn.net *.facebook.net *.google-analytics.com *.google.com 127.0.0.1:* 'unsafe-inline' 'unsafe-eval' blob: data: 'self';style-src data: blob: 'unsafe-inline' *;connect-src *.facebook.com facebook.com *.fbcdn.net *.facebook.net wss://*.facebook.com:* wss://*.whatsapp.com:* wss://*.fbcdn.net attachment.fbsbx.com ws://localhost:* blob: *.cdninstagram.com 'self';block-all-mixed-content;upgrade-insecure-requests;require-trusted-types-for 'script';
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Request headers

accept-language
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User-Agent
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Response headers

content-security-policy
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content-encoding
gzip
x-content-type-options
nosniff
strict-transport-security
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date
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document-policy
force-load-at-top
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=86400
content-length
54273
x-xss-protection
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reporting-endpoints
pragma
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cross-origin-opener-policy
same-origin-allow-popups
vary
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x-frame-options
DENY
content-type
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origin-agent-cluster
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cache-control
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permissions-policy
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timing-allow-origin
*
expires
Sat, 01 Jan 2000 00:00:00 GMT
collect
analytics.google.com/g/ 		0
255 B 		Ping
General
Check archive.org
Download Go to
Full URL
https://analytics.google.com/g/collect?v=2&tid=G-CSFDVCPQ4F&_ono=1&gtm=45je3au1v899653930z8811879556&_p=833580367&_gaz=1&gcd=11l1l1l1l1&cid=339065125.1698896843&ul=en-us&sr=1600x1200&uaa=&uab=&uafvl=&uamb=0&uam=&uap=&uapv=&uaw=0&_s=1&sid=1698896842&sct=1&seg=0&dl=https%3A%2F%2Fwww.duolingo.com%2F&dt=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&en=page_view&_fv=1&_nsi=1&_ss=1
Requested by
Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=G-CSFDVCPQ4F&l=dataLayer&cx=c
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
142.251.175.102 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
sh-in-f102.1e100.net
Software
Golfe2 /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
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User-Agent
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Response headers

pragma
no-cache
date
Thu, 02 Nov 2023 03:47:23 GMT
server
Golfe2
content-type
text/plain
access-control-allow-origin
https://www.duolingo.com
cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
0
expires
Fri, 01 Jan 1990 00:00:00 GMT
collect
stats.g.doubleclick.net/g/ 		0
255 B 		Ping
General
Check archive.org
Download Go to
Full URL
https://stats.g.doubleclick.net/g/collect?v=2&_ono=1&tid=G-CSFDVCPQ4F&cid=339065125.1698896843&gtm=45je3au1v899653930z8811879556&aip=1
Requested by
Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=G-CSFDVCPQ4F&l=dataLayer&cx=c
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
74.125.130.155 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
sb-in-f155.1e100.net
Software
Golfe2 /
Resource Hash
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Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
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Response headers

pragma
no-cache
date
Thu, 02 Nov 2023 03:47:23 GMT
server
Golfe2
content-type
text/plain
access-control-allow-origin
https://www.duolingo.com
cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
0
expires
Fri, 01 Jan 1990 00:00:00 GMT
ga-audiences
www.google.com.sg/ads/ 		42 B
408 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://www.google.com.sg/ads/ga-audiences?v=1&t=sr&slf_rd=1&_r=4&_ono=1&tid=G-CSFDVCPQ4F&cid=339065125.1698896843&gtm=45je3au1v899653930z8811879556&aip=1&z=271443563
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
142.251.175.94 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
sh-in-f94.1e100.net
Software
cafe /
Resource Hash
ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629
Security Headers
Name Value
X-Content-Type-Options nosniff
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Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

pragma
no-cache
date
Thu, 02 Nov 2023 03:47:23 GMT
x-content-type-options
nosniff
server
cafe
content-type
image/gif
p3p
policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
cache-control
no-cache, no-store, must-revalidate
cross-origin-resource-policy
cross-origin
timing-allow-origin
*
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
42
x-xss-protection
0
expires
Fri, 01 Jan 1990 00:00:00 GMT
/
www.google.com/pagead/1p-conversion/397119219/
Redirect Chain
  • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/397119219/?random=1266593422&cv=11&fst=1698896842338&bg=ffffff&guid=ON&async=1&gtm=45He3au1v811879556&gcd=11l1l1l1l1&u_w=1600&u_h=12...
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0
0
collect
www.google-analytics.com/j/ 		4 B
210 B 		XHR
General
Check archive.org
Download Go to
Full URL
https://www.google-analytics.com/j/collect?v=1&_v=j101&a=833580367&t=pageview&_s=1&dl=https%3A%2F%2Fwww.duolingo.com%2F&ul=en-us&de=UTF-8&dt=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=YADAAEABAAAAACgAI~&jid=8235913&gjid=407031127&cid=339065125.1698896843&tid=UA-21595814-1&_gid=836910529.1698896843&_r=1&_slc=1&gtm=45He3au1n81TX6Z97Cv811879556&gcd=11l1l1l1l1&did=i5iSjo&z=1562729659
Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/4492-25ec662f.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
216.239.32.178 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
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Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Referer
https://www.duolingo.com/
accept-language
zh-SG,zh;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36
Content-Type
text/plain

Response headers

pragma
no-cache
date
Thu, 02 Nov 2023 03:47:23 GMT
x-content-type-options
nosniff
last-modified
Sun, 17 May 1998 03:00:00 GMT
server
Golfe2
content-type
text/plain
access-control-allow-origin
https://www.duolingo.com
cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
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cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
4
expires
Fri, 01 Jan 1990 00:00:00 GMT
1735692093320310
connect.facebook.net/signals/config/ 		138 KB
36 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://connect.facebook.net/signals/config/1735692093320310?v=2.9.138&r=stable&domain=www.duolingo.com
Requested by
Host: connect.facebook.net
URL: https://connect.facebook.net/en_US/fbevents.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
157.240.235.1 Singapore, Singapore, ASN32934 (FACEBOOK, US),
Reverse DNS
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Software
/
Resource Hash
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Security Headers
Name Value
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Strict-Transport-Security max-age=31536000; preload; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 0

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

content-security-policy
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content-encoding
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nosniff
strict-transport-security
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date
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document-policy
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cross-origin-resource-policy
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alt-svc
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pragma
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same-origin-allow-popups
vary
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x-frame-options
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content-type
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cache-control
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permissions-policy
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timing-allow-origin
*
expires
Sat, 01 Jan 2000 00:00:00 GMT
collect
stats.g.doubleclick.net/j/ 		8 B
155 B 		XHR
General
Check archive.org
Download Go to
Full URL
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j101&tid=UA-21595814-1&cid=339065125.1698896843&jid=8235913&gjid=407031127&_gid=836910529.1698896843&_u=YADAAEAAAAAAACgAI~&z=1224477601
Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/4492-25ec662f.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
74.125.130.155 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
sb-in-f155.1e100.net
Software
Golfe2 /
Resource Hash
17bd1c297a7fd1221272d080053f887bb97c03bfc16d6f96bdd7f08bf87dbbd5
Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

Referer
https://www.duolingo.com/
accept-language
zh-SG,zh;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36
Content-Type
text/plain

Response headers

pragma
no-cache
strict-transport-security
max-age=10886400; includeSubDomains; preload
date
Thu, 02 Nov 2023 03:47:23 GMT
x-content-type-options
nosniff
last-modified
Sun, 17 May 1998 03:00:00 GMT
server
Golfe2
content-type
text/plain
access-control-allow-origin
https://www.duolingo.com
cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
8
expires
Fri, 01 Jan 1990 00:00:00 GMT
/
www.facebook.com/tr/ 		0
185 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://www.facebook.com/tr/?id=1735692093320310&ev=PageView&dl=https%3A%2F%2Fwww.duolingo.com%2F&rl=&if=false&ts=1698896843217&sw=1600&sh=1200&v=2.9.138&r=stable&ec=0&o=4125&fbp=fb.1.1698896843216.1553680024&ler=empty&it=1698896843096&coo=false&rqm=GET
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
157.240.235.35 Singapore, Singapore, ASN32934 (FACEBOOK, US),
Reverse DNS
edge-star-mini-shv-04-sin6.facebook.com
Software
proxygen-bolt /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

strict-transport-security
max-age=31536000; includeSubDomains
date
Thu, 02 Nov 2023 03:47:23 GMT
server
proxygen-bolt
content-type
text/plain
access-control-allow-origin
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=86400
content-length
0
ga-audiences
www.google.com/ads/ 		0
0
ga-audiences
www.google.com.sg/ads/ 		42 B
107 B 		Image
General
Check archive.org
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Full URL
https://www.google.com.sg/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j101&tid=UA-21595814-1&cid=339065125.1698896843&jid=8235913&_u=YADAAEAAAAAAACgAI~&z=225468348
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
142.251.175.94 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
sh-in-f94.1e100.net
Software
cafe /
Resource Hash
ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

pragma
no-cache
date
Thu, 02 Nov 2023 03:47:23 GMT
x-content-type-options
nosniff
server
cafe
content-type
image/gif
p3p
policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
cache-control
no-cache, no-store, must-revalidate
cross-origin-resource-policy
cross-origin
timing-allow-origin
*
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
42
x-xss-protection
0
expires
Fri, 01 Jan 1990 00:00:00 GMT
style
accounts.google.com/gsi/ 		533 B
608 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://accounts.google.com/gsi/style
Requested by
Host: accounts.google.com
URL: https://accounts.google.com/gsi/client
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
64.233.170.84 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
sg-in-f84.1e100.net
Software
ESF /
Resource Hash
1c4e7e389d73c6acf7f19cc812514e71230740791fde8a018c1d7edccf1590ae
Security Headers
Name Value
Content-Security-Policy script-src 'report-sample' 'nonce-u51nKXAmNApC1qEU9vZbbQ' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';object-src 'none';base-uri 'self';report-uri https://csp.withgoogle.com/csp/identity-sign-in-google-http, require-trusted-types-for 'script';report-uri https://csp.withgoogle.com/csp/identity-sign-in-google-http
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

accept-language
zh-SG,zh;q=0.9
Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.5993.117 Safari/537.36

Response headers

date
Thu, 02 Nov 2023 03:47:24 GMT
content-security-policy
script-src 'report-sample' 'nonce-u51nKXAmNApC1qEU9vZbbQ' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';object-src 'none';base-uri 'self';report-uri https://csp.withgoogle.com/csp/identity-sign-in-google-http, require-trusted-types-for 'script';report-uri https://csp.withgoogle.com/csp/identity-sign-in-google-http
content-encoding
gzip
x-content-type-options
nosniff
server
ESF
x-frame-options
SAMEORIGIN
report-to
{"group":"coop_dd7de8473bddc59c6b748810a67a39b1","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/dd7de8473bddc59c6b748810a67a39b1"}]}
content-type
text/css; charset=utf-8
cache-control
private, max-age=86400
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection
0
cross-origin-opener-policy-report-only
same-origin; report-to="coop_dd7de8473bddc59c6b748810a67a39b1"
expires
Thu, 02 Nov 2023 03:47:24 GMT

Failed requests

These URLs were requested, but there was no response received. You will also see them in the list above.

Domain
www.google.com
URL
https://www.google.com/pagead/1p-conversion/397119219/?random=1266593422&cv=11&fst=1698896842338&bg=ffffff&guid=ON&async=1&gtm=45He3au1v811879556&gcd=11l1l1l1l1&u_w=1600&u_h=1200&url=https%3A%2F%2Fwww.duolingo.com%2F&label=k0ETCJGBvf0BEPOdrr0B&hn=www.googleadservices.com&frm=0&tiba=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&value=1&auid=1455369284.1698896842&uamb=0&uaw=0&fmt=3&ct_cookie_present=false&sscte=1&crd=&pscrd=Ek5DaEFJOE82SHFnWVE2N0Q5cjdtVnN1bEJFaVlBVUtxaUpEdWVvVGFBVFJVY0s4Umd0TUZLMUc5djRnSndpdnhWWV91VlpWUEFFaWt3NWcaWkNoRUk4TzZIcWdZUXR1LTZ4dlhVNE03ekFSSXVBQlNjLTFaMU85OXJGWjNFQkRLQms2T2JuOXVabDJrQVdZcVQxVTdrTVV0WW4wYUxCUmtwbUlueVBTU2NBdyITCI-VxPazpIIDFSslgwMdm-cFIQ&is_vtc=1&ocp_id=yhtDZY-IKKvKjMwPm8-XiAI&cid=CAQSGwDICaaNA9UDI7_7KTLQcj_GDRoh6PyZr8goUA&eitems=ChEI8O6HqgYQrtiO1bqf5Z6BARIdAOvfYP7t6VS-c3uE_6gRil6LxbBjrYbFSXpVQyc&random=501145729
Domain
www.google.com
URL
https://www.google.com/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j101&tid=UA-21595814-1&cid=339065125.1698896843&jid=8235913&_u=YADAAEAAAAAAACgAI~&z=225468348

Verdicts & Comments Add Verdict or Comment

52 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

object| 0 object| 1 object| documentPictureInPicture object| OneTrustStub function| OptanonWrapper object| duo object| webpackChunk object| ___grecaptcha_cfg object| grecaptcha string| __recaptcha_api boolean| __google_recaptcha_client boolean| supportsAbortController boolean| supportsElementAnimate boolean| supportsES2015 boolean| supportsIntersectionObserver boolean| supportsResizeObserver object| features boolean| isAbc object| HIDE_APP_SMART_BANNER_PATH undefined| el string| OnetrustActiveGroups string| OptanonActiveGroups object| dataLayer object| otStubData function| _fs_ready function| _rollbarURH function| ga object| gaDevIds object| gaplugins function| HowlerGlobal object| Howler function| Howl function| Sound function| onGoogleLibraryLoad object| Optanon object| OneTrust object| recaptcha object| closure_lm_458639 object| google_tag_manager object| google_tag_data object| GooglebQhCsO string| GoogleAnalyticsObject function| fbq function| _fbq object| googletag function| onYouTubeIframeAPIReady object| gaGlobal object| default_gsi object| google object| closure_lm_345301 object| gaData object| __G_ID_CLIENT__

19 Cookies

Domain/Path Name / Value
.duolingo.com/ Name: logged_out_uuid
Value: a1d6aecf-8cd5-442d-8bbc-bdb785a69eef
.duolingo.com/ Name: lang
Value: zs
.duolingo.com/ Name: duocsexp0
Value: web_dotcom_redesign_all_languages_v2~control~
www.duolingo.com/ Name: wuuid
Value: 483c5f9f-199f-46d4-8c84-84c047286ac4
.duolingo.com/ Name: tsl
Value: 1698896840109
.duolingo.com/ Name: lu
Value: https://www.duolingo.com/
.duolingo.com/ Name: initial_referrer
Value: $direct
.duolingo.com/ Name: lr
Value:
.duolingo.com/ Name: lp
Value: splash
.duolingo.com/ Name: OptanonConsent
Value: isGpcEnabled=0&datestamp=Thu+Nov+02+2023+11%3A47%3A20+GMT%2B0800+(Singapore+Standard+Time)&version=6.16.0&isIABGlobal=false&consentId=f0d8a134-2341-4745-a332-1063a0cfb17b&interactionCount=0&landingPath=https%3A%2F%2Fwww.duolingo.com%2F&groups=C0001%3A1%2CC0002%3A1%2CC0003%3A1%2CC0004%3A1&hosts=H3%3A1%2CH14%3A1%2CH11%3A1%2CH1%3A1%2CH15%3A1%2CH6%3A1%2CH22%3A1%2CH2%3A1%2CH26%3A1%2CH7%3A1%2CH16%3A1%2CH9%3A1%2CH28%3A1%2CH18%3A1%2CH10%3A1%2CH12%3A1%2CH13%3A1
www.duolingo.com/ Name: AWSALB
Value: ag22hqRNbI0u3xP41QqdigyUw49XnZFOBMopvtFPWbTPf4oiUz4qRh6CzuzMf8VeKVYxwiDdRDyxerqeE0VAZ4BIwJhR1eVnaSmSv3zttjwc28pnIuXL6awhNmpS
www.duolingo.com/ Name: AWSALBCORS
Value: ag22hqRNbI0u3xP41QqdigyUw49XnZFOBMopvtFPWbTPf4oiUz4qRh6CzuzMf8VeKVYxwiDdRDyxerqeE0VAZ4BIwJhR1eVnaSmSv3zttjwc28pnIuXL6awhNmpS
.duolingo.com/ Name: _gcl_au
Value: 1.1.1455369284.1698896842
.duolingo.com/ Name: _ga_CSFDVCPQ4F
Value: GS1.1.1698896842.1.0.1698896842.60.0.0
.duolingo.com/ Name: _ga
Value: GA1.2.339065125.1698896843
.duolingo.com/ Name: _gid
Value: GA1.2.836910529.1698896843
.duolingo.com/ Name: _gat_UA-21595814-1
Value: 1
.duolingo.com/ Name: _fbp
Value: fb.1.1698896843216.1553680024
.doubleclick.net/ Name: test_cookie
Value: CheckForPermission

4 Console Messages

Source Level URL
Text
network error URL: https://brb.duolingo.com/0/web.json?user=0&ts=1698896840&tzoffset=8
Message:
Failed to load resource: the server responded with a status of 404 ()
network error URL: https://zombie.duolingo.com/0/web.json?user=0&ts=1698896840&tzoffset=8
Message:
Failed to load resource: the server responded with a status of 404 ()
network error URL: https://www.google.com/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j101&tid=UA-21595814-1&cid=339065125.1698896843&jid=8235913&_u=YADAAEAAAAAAACgAI~&z=225468348
Message:
Failed to load resource: net::ERR_CONNECTION_RESET
network error URL: https://www.google.com/pagead/1p-conversion/397119219/?random=1266593422&cv=11&fst=1698896842338&bg=ffffff&guid=ON&async=1&gtm=45He3au1v811879556&gcd=11l1l1l1l1&u_w=1600&u_h=1200&url=https%3A%2F%2Fwww.duolingo.com%2F&label=k0ETCJGBvf0BEPOdrr0B&hn=www.googleadservices.com&frm=0&tiba=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&value=1&auid=1455369284.1698896842&uamb=0&uaw=0&fmt=3&ct_cookie_present=false&sscte=1&crd=&pscrd=Ek5DaEFJOE82SHFnWVE2N0Q5cjdtVnN1bEJFaVlBVUtxaUpEdWVvVGFBVFJVY0s4Umd0TUZLMUc5djRnSndpdnhWWV91VlpWUEFFaWt3NWcaWkNoRUk4TzZIcWdZUXR1LTZ4dlhVNE03ekFSSXVBQlNjLTFaMU85OXJGWjNFQkRLQms2T2JuOXVabDJrQVdZcVQxVTdrTVV0WW4wYUxCUmtwbUlueVBTU2NBdyITCI-VxPazpIIDFSslgwMdm-cFIQ&is_vtc=1&ocp_id=yhtDZY-IKKvKjMwPm8-XiAI&cid=CAQSGwDICaaNA9UDI7_7KTLQcj_GDRoh6PyZr8goUA&eitems=ChEI8O6HqgYQrtiO1bqf5Z6BARIdAOvfYP7t6VS-c3uE_6gRil6LxbBjrYbFSXpVQyc&random=501145729
Message:
Failed to load resource: net::ERR_CONNECTION_RESET

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header Value
X-Frame-Options SAMEORIGIN

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

accounts.google.com
analytics.google.com
brb.duolingo.com
cdn.cookielaw.org
connect.facebook.net
d35aaqx5ub95lt.cloudfront.net
duolingo.com
excess.duolingo.com
fonts.gstatic.com
geolocation.onetrust.com
stats.g.doubleclick.net
www.duolingo.com
www.facebook.com
www.google-analytics.com
www.google.com
www.google.com.sg
www.googleadservices.com
www.googletagmanager.com
www.gstatic.com
www.recaptcha.net
zombie.duolingo.com
www.google.com
104.18.130.236
142.251.10.97
142.251.175.102
142.251.175.94
157.240.235.1
157.240.235.35
172.217.194.155
172.217.194.94
172.64.155.119
18.232.25.127
18.64.100.9
18.64.119.26
18.66.2.22
184.72.124.184
216.239.32.178
34.194.7.215
64.233.170.84
64.233.170.94
74.125.130.155
74.125.130.94
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